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Open AccessArticle

Landfill Site Selection Using MCDM Methods and GIS in the Sulaimaniyah Governorate, Iraq

1
Department of Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, 97187 Lulea, Sweden
2
Department of Geology, College of Science, Sulaimani University, Sulaimaniyah 460013, Iraq
3
Kurdistan Institution for Strategic Studies and Scientific Research, Sulaimaniyah 460013, Iraq
4
Komar University of Science and Technology, Sulaimaniyah 460013, Iraq
5
Komar Research Center, Sulaimaniyah 460013, Iraq
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(17), 4530; https://doi.org/10.3390/su11174530
Received: 22 July 2019 / Revised: 13 August 2019 / Accepted: 17 August 2019 / Published: 21 August 2019
(This article belongs to the Special Issue Environmental Behaviour and Collective Decision Making)
A shortage of land for waste disposal is one of the serious problems that faces urban areas in developing countries. The Sulaimaniyah Governorate, located in the north of Iraq, is one of the major cities in the Kurdistan Region of the country, covering an area of 2400 km2 with a population of 856,990 in 2016. Currently, there is no landfill site in the study area that meets scientific and environmental criteria, and inappropriate solid waste dumping is causing negative environmental impacts. The process of landfill site selection is considered a complex process and is restricted by numerous factors and regulations. This paper proposes multi-criteria decision-making (MCDM) methods in a model for landfill site decision. The model assumes the input of two groups of factors that need to satisfy the optimal values of weight coefficients. These groups of constants are natural factors and artificial factors, and they included thirteen selected criteria: slope, geology, land use, urban area, villages, rivers, groundwater, slope, elevation, soil, geology, road, oil and gas, land use, archaeology and power lines. The criteria were used in the geographic information system (GIS), which has a high capacity to process and analyze various data. In addition, multi-criteria decision-making (MCDM) methods followed by the weighted linear combination (WLC) method were used to derive criteria weightings using a matrix of pair-wise comparison. Finally, all the multi criteria decision methods were combined to obtain an intersection of the suitability index map for candidate landfill sites. Seven appropriate sites for landfill were suggested, all of which satisfied the scientific and environmental criteria which were adopted in this study. View Full-Text
Keywords: landfill site; GIS software; MCDM methods; criteria weights; suitability index landfill site; GIS software; MCDM methods; criteria weights; suitability index
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Alkaradaghi, K.; Ali, S.S.; Al-Ansari, N.; Laue, J.; Chabuk, A. Landfill Site Selection Using MCDM Methods and GIS in the Sulaimaniyah Governorate, Iraq. Sustainability 2019, 11, 4530.

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